Re: [udig-devel] Problem using GeoTIFF file in uDIG

Sun, 22 Apr 2007 14:26:20 -0700 

Hi Bob,
We are currently moving a branch of uDig to use Geotools trunk which has a wicked implementation of Geotiff. It can render GB+ sized Geotiffs very efficiently as long as the overviews are generated. I also think there is some JPEG2000 support somewhere on trunk. However it will be a little while before it is completely stable. But if you have the patience, helping us test it would really be great. 


You've been a great help already.  I'll let you know when a Milestone  
from the branch comes out.


Jesse

On Apr 22, 2007, at 10:04 AM, Bruce, Bob (CON) wrote:


Hi Jesse:

                thanks for that pointer, it fixed my problem and I  
was able to display GeoTIFF files with the Mantario Trail SHAPE  
file superimposed upon them. I currently have 6 6Mb GeoTIFF files  
shown.



I tried translating one of our MrSID images into GeoTIFF to display  
much more of the trail, but the GeoTIFF ended up being 600Mb and  
uDig couldn't seem to handle that. It would be a lot better if uDig  
supported MrSID files which we release a lot of our imagery on the  
MLI here in Manitoba in. Or else if you can't support MrSID because  
of proprietary issues conflicting with the LGPL license then at  
least if you supported JPEG2000 would be an option. I couldn't  
translate this file into ECW because of a GDAL 500k ECW SDK issue  
and anyway uDig doesn't support ECW.


   Bob


From: [EMAIL PROTECTED] [mailto:udig-devel- 
[EMAIL PROTECTED] On Behalf Of Jesse Eichar

Sent: Friday, 20 April, 2007 12:11 PM
To: User-friendly Desktop Internet GIS
Subject: Re: [udig-devel] Problem using GeoTIFF file in uDIG


This is a frusterating problem that I have not been able to solve.   
It seems that sometimes it works and sometimes it doesn't.  I found  
a hack that works though.  in the short cut add:


-vmargs -Dosgi.parentClassloader=ext

that worked for me.  I will update the install script.

Jesse


On Apr 19, 2007, at 11:11 PM, Bruce, Bob (CON) wrote:


I am using uDig 1.1-RC10a on a WIN XP Pro system


I am trying to include 6 GeoTIFF files in my uDig project and am  
getting errors when I do this. The error message under the GeoTIFF  
category is:



File can not be read.  Could be a JAI configuration problem or a  
corrupted file.  Error recieved was:  
java.lang.IllegalArgumentException: ImageRead: No  
OperationDescriptor is registered in the current operation  
registry under this name.



So I listed the information about one of the images using GDALINFO  
and got this output:



C:\OpenSourceTestData\MantarioTrail\Zone14Shapes>gdalinfo  
7505550neg.tif

Driver: GTiff/GeoTIFF
Size is 2500, 2500
Coordinate System is:
PROJCS["unnamed",
    GEOGCS["NAD83",
        DATUM["North_American_Datum_1983",
            SPHEROID["GRS 1980",6378137,298.2572221010002,
                AUTHORITY["EPSG","7019"]],
            AUTHORITY["EPSG","6269"]],
        PRIMEM["Greenwich",0],
        UNIT["degree",0.0174532925199433],
        AUTHORITY["EPSG","4269"]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",0],
    PARAMETER["central_meridian",-99],
    PARAMETER["scale_factor",0.9996],
    PARAMETER["false_easting",500000],
    PARAMETER["false_northing",0],
    UNIT["unknown",1],
    AUTHORITY["EPSG","26914"]]
Origin = (755000.000000000000000,5560000.000000000000000)
Pixel Size = (2.000000000000000,-2.000000000000000)
Metadata:
  AREA_OR_POINT=Area
Corner Coordinates:

Upper Left  (  755000.000, 5560000.000) ( 95d25'52.66"W, 50d  
8'14.41"N)
Lower Left  (  755000.000, 5555000.000) ( 95d26'4.68"W, 50d  
5'32.84"N)
Upper Right (  760000.000, 5560000.000) ( 95d21'41.29"W, 50d  
8'6.60"N)
Lower Right (  760000.000, 5555000.000) ( 95d21'53.54"W, 50d  
5'25.04"N)
Center      (  757500.000, 5557500.000) ( 95d23'53.04"W, 50d  
6'49.74"N)

Band 1 Block=2500x3 Type=Byte, ColorInterp=Gray

Can someone tell me what I'm doing wrong?

thanks,
         Bob Bruce, Winnipeg, Manitoba

_______________________________________________
User-friendly Desktop Internet GIS (uDig)
http://udig.refractions.net
http://lists.refractions.net/mailman/listinfo/udig-devel


_______________________________________________
User-friendly Desktop Internet GIS (uDig)
http://udig.refractions.net
http://lists.refractions.net/mailman/listinfo/udig-devel



_______________________________________________
User-friendly Desktop Internet GIS (uDig)
http://udig.refractions.net
http://lists.refractions.net/mailman/listinfo/udig-devel






















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